split cell in 2 columns

Question

Dion Theunissen 2021-7-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/889132-split-cell-in-2-columns

回答： Peter Perkins 2021-7-30

I have a 422x1 cell which contains strings as below

0
0
[35.1600000000000,35.1600000000000]
0
0
35.1600000000000
0
0
[35.8200000000000,35.8200000000000]
0
0
35.8200000000000
0
[36.6600000000000,36.6600000000000]

How can i split this cell so that i get 2 different cells. 1 of them is just the first value, the second of them are zeros except when there are 2 values in the string.

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Answer 1

Monika Jaskolka 2021-7-30

0
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https://ww2.mathworks.cn/matlabcentral/answers/889132-split-cell-in-2-columns#answer_757467

编辑：Monika Jaskolka 2021-7-30

A = {0,0,[35.1600000000000,35.1600000000000],0,0,35.1600000000000, ...
    0,0,[35.8200000000000,35.8200000000000],0,0,35.8200000000000,0,[36.6600000000000,36.6600000000000]};
B = zeros(size(A,2), 2);
for i = 1:length(A)
    B(i,1) = A{i}(1);
	if size(A{i}, 2) > 1
		B(i,2) = A{i}(2);
	end
end	
B = 14×2
         0         0
         0         0
   35.1600   35.1600
         0         0
         0         0
   35.1600         0
         0         0
         0         0
   35.8200   35.8200
         0         0

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Answer 2

Peter Perkins 2021-7-30

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/889132-split-cell-in-2-columns#answer_757527

Use cellfun, two possibilities:

function [val1,val2] = myfun1(x)
val1 = x(1);
if isscalar(x)
    val2 = 0;
else
    val2 = x(2);
end
end
>> C0 = {1; 2:3; 4:5; 6}
>> [C1,C2] = cellfun(@myfun1,C0,"UniformOutput",false)
>> C12 = [C1 C2]
C12 =
  4×2 cell array
    {[1]}    {[0]}
    {[2]}    {[3]}
    {[4]}    {[5]}
    {[6]}    {[0]}    

or

function cellRowOut = myfun2(x)
if isscalar(x)
    cellRowOut = {x 0};
else
    cellRowOut = {x(1) x(2)};
end
end
>> C12 = cellfun(@myfun2,C0,"UniformOutput",false)
C12 =
  4×1 cell array
    {1×2 cell}
    {1×2 cell}
    {1×2 cell}
    {1×2 cell}
>> C12 = vertcat(C12{:})
C12 =
  4×2 cell array
    {[1]}    {[0]}
    {[2]}    {[3]}
    {[4]}    {[5]}
    {[6]}    {[0]}